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Starting and Adjusting the Pump
1. Refer to Fig. 5 on page 11. Connect the suction kit
(T) to the pump's fluid inlet, and place the tube into
the fluid supply.
2. Check the hydraulic fluid level before each use, and
add fluid as necessary.
3. Make certain that the supply line shutoff valve (U)
and the return line shutoff valve (V) are closed.
4. Start the hydraulic power supply.
5. Hold a metal part of the gun/valve (S) firmly to the
side of a grounded metal pail and hold the trigger
open.
6. Open the return line shutoff valve (V) first, then
slowly open the supply line shutoff valve (U).
7. Cycle the pump slowly until all air is pushed out and
the pump and hoses are fully primed. Release the
gun/valve trigger and engage the safety latch. The
pump should stall against pressure when the trigger
is released.
WARNING
SKIN INJECTION HAZARD
To reduce the risk of skin injection, do not use your
hand or fingers to cover the bleed hole on the
underside of the bleeder valve body (34) when priming
the pump. Use a crescent wrench to open and close
the bleeder plug (35). Keep your hands away from the
bleed hole.
8. If the pump fails to prime properly, open the bleeder
valve (35) slightly. Use the bleed hole, on the
underside of the body (34), as a priming valve until
the fluid appears at the hole. See Fig. 6. Close the
plug (35).
NOTE: When changing fluid containers with the hose
and gun already primed, open the bleeder valve (24), to
assist in priming the pump and venting air before it
enters the hose. Close the bleeder valve when all air has
been eliminated.
9. With the pump and lines primed, and with adequate
hydraulic volume supplied, the pump will start and
stop as the gun/valve is opened and closed. In a
circulating system, the pump will speed up or slow
down on demand, until the hydraulic power supply is
shut off.
Operation/Maintenance
(HYDRAULIC-POWERED PUMPS)
10. Use the fluid pressure gauge (F) and flow control
valve (G) to control the pump speed and the fluid
outlet pressure. Always use the lowest hydraulic
flow and pressure necessary to get the desired
results. Higher pressures cause premature
tip/nozzle and pump wear.
WARNING
To reduce the risk of overpressurizing your system,
which could result in component rupture and cause
serious injury, never exceed 10 MPa, 103 bar (1500
psi) Maximum Hydraulic Input Pressure to the pump, or
14.0 MPa, 140 bar (2000 psi) Maximum Fluid Working
Pressure (see the Technical Data on page 37).
To prevent overpressurizing the hydraulic motor or its
seals, always shut off the supply line valve (U) first,
then shut off the return line valve (V).
CAUTION
Do not allow the hydraulic oil temperature to exceed
54° C (130° F). The pump seals will wear faster and
leakage may occur if the pump is operated at higher
oil temperatures.
11. Never allow the pump to run dry of the fluid being
pumped. A dry pump will quickly accelerate to a high
speed, possibly damaging itself. If your pump
accelerates quickly, or is running too fast, stop it
immediately and check the fluid supply. If the supply
container is empty and air has been pumped into the
lines, refill the container and prime the pump and the
lines with fluid, or flush and leave it filled with a
compatible solvent. Be sure to eliminate all air from
the fluid system.
Shutdown and Care of the Pump
WARNING
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 13.
For overnight shutdown, relieve the pressure. Stop the
pump at the bottom of the stroke to prevent fluid from
drying on the exposed displacement rod and damaging
the throat packings.
Always flush the pump before the fluid dries on the
displacement rod. Flush with water or a compatible
solvent. Relieve the pressure after flushing.
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